Hi Bruce,

thank you it worked!

Another short question:

I want mri_surf2vol to assign the average of all volume voxel values within 10 mm to the corresponding vertices.

So if there is only one voxel value greater than zero in the volume, all vertices which are closer than 10 mm should

get that value (or the mean if there is more than one value). Can I use ' --projdist 10' for this purpose?

Thank you!!

Cheers,

Michael

Am Mo., 18. Feb. 2019 um 15:01 Uhr schrieb Bruce Fischl <fischl@nmr.mgh.harvard.edu>:

Hi Michael

you can use --regheader, which uses the ras2vox matrices to compute the
registration (which is also what freeview does).

cheers
Bruce
On Mon, 18 Feb
2019, Michael Jordan wrote:

>
> External Email - Use Caution
>
> Hi,
>
> i would like to sample the t-values of a SPM output volume (spmT_0001.nii) onto the pial surface of
> the same subject.
> The volume is already aligned to the surface files (so if I view the volume as well as the surface
> files in Freeview they are already aligned).
>
> Therefore I am unsure how to use mri_vol2surf because from my point of view I do not need any
> registration (srcreg).
> Nevertheless the registration is required to run the command. I only found the --mni152reg option to
> avoid specifying a registration.
>
> How I should use the mri_vol2surf command to sample the volume onto the pial surface of the same
> subject under the condition that
> surface and volume are already aligned?
>
> Thank you!
>
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